If you just want a sequence diagram like that I suggest https://www.websequencediagrams.com/ https://www.websequencediagrams.com/ It's now as a website, but I

If you just want a sequence diagram like that I suggest https://www.websequencediagrams.com/ https://www.websequencediagrams.com/ It's now as a website, but I have the server version and use it at least once a week to crank out interactions